The button on Instagram is a core feature of Instagram Shopping , designed to turn the platform from a discovery engine into a direct digital storefront. It primarily appears in three locations: within a merchant's profile shop , on shoppable posts (tagged images/videos), and within sponsored advertisements . Evolution and Functionality
Instagram Adds ‘Shop Now’ Button for In-App Impulse Buying - WSJ instagram buy now button
Originally introduced in as a "Shop Now" button for ads, the feature has evolved significantly: The button on Instagram is a core feature